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    • 6. 发明申请
    • SYSTEM FOR DETERMINING THE ORIENTATION OF A CATHETER
    • 用于确定导管的方向的系统
    • WO2010092512A1
    • 2010-08-19
    • PCT/IB2010/050515
    • 2010-02-04
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHHANSIS, Eberhard, S.GRASS, Michael
    • HANSIS, Eberhard, S.GRASS, Michael
    • A61B19/00
    • A61B19/54A61B90/39A61B2034/102A61B2090/376A61F2002/30619A61F2250/0097A61F2250/0098A61M25/0108
    • The present invention relates to a system for determining the orientation of a catheter (2). The system comprises a catheter (2), an asymmetric marker (11) attached to the catheter (2), and an imaging unit (25) for generating a projection image of the asymmetric marker (11), wherein the imaging unit (25) comprises a radiation source for generating radiation for projecting the asymmetric marker (11) in a projection plane and a detection unit for generating the projection image of the asymmetric marker (11) projected in the projection plane. The system comprises further an orientation determination unit for determining the orientation of the asymmetric marker (11) from the projection image of the asymmetric marker (11) and for determining the orientation of the catheter (2) from the determined orientation of the asymmetric marker (11). The asymmetric marker (11) is adapted such that the orientation of the asymmetric marker (11) is determinable from the projection image of the asymmetric marker (11) alone.
    • 本发明涉及一种用于确定导管(2)的取向的系统。 该系统包括导管(2),附接到导管(2)的不对称标记(11)和用于产生不对称标记(11)的投影图像的成像单元(25),其中成像单元(25) 包括用于产生用于在投影平面中投影非对称标记(11)的辐射的辐射源和用于产生投射在投影平面中的不对称标记(11)的投影图像的检测单元。 该系统还包括一个取向确定单元,用于从不对称标记物(11)的投影图像中确定不对称标记物(11)的取向,并确定导管(2)从不对称标记物的确定取向 11)。 不对称标记(11)适于使得非对称标记(11)的取向可以从单独的不对称标记(11)的投影图像确定。